Table 8.
DNA damage frequency (%) in lymphocytes, hepatocytes, kidney cells, and gills of Hypophthalmichthys nobilis (bighead carp) treated with pendimethalin.
| DNA damage (hours) | Groups/treatments | |||
|---|---|---|---|---|
| T0 (0.0 mg/L) | T1 (0.25 mg/L) | T2 (0.50 mg/L) | T3 (0.75 mg/L) | |
| Lymphocytes (%) | ||||
| 72 | 1.13 ± 0.11 | 1.17 ± 0.05 | 1.19 ± 0.07 | 1.24 ± 0.03 |
| 96 | 1.18 ± 0.13 | 1.18 ± 0.07 | 1.21 ± 0.14 | 3.31 ± 0.07∗ |
| 120 | 1.17 ± 0.09 | 1.21 ± 0.05 | 3.53 ± 0.55∗ | 4.49 ± 0.21∗ |
| Hepatocytes (%) | ||||
| 72 | 1.29 ± 0.08 | 1.34 ± 0.08 | 1.43 ± 0.02 | 1.46 ± 0.02 |
| 96 | 1.32 ± 0.12 | 1.37 ± 0.03 | 1.45 ± 0.11 | 3.77 ± 0.13∗ |
| 120 | 1.37 ± 0.16 | 1.42 ± 0.09 | 4.05 ± 0.31∗ | 5.03 ± 0.29∗ |
| Kidney cells (%) | ||||
| 72 | 1.45 ± 0.12 | 1.51 ± 0.16 | 1.55 ± 0.09 | 1.57 ± 0.04 |
| 96 | 1.47 ± 0.13 | 1.53 ± 0.08 | 2.69 ± 0.17∗ | 3.91 ± 0.15∗ |
| 120 | 1.49 ± 0.15 | 1.55 ± 0.05 | 3.81 ± 0.27∗ | 4.25 ± 0.21∗ |
| Gills (%) | ||||
| 72 | 1.34 ± 0.19 | 1.37 ± 0.11 | 1.39 ± 0.15 | 1.46 ± 0.09 |
| 96 | 1.35 ± 0.18 | 1.38 ± 0.10 | 3.03 ± 0.11∗ | 3.39 ± 0.11∗ |
| 120 | 1.39 ± 0.21 | 1.42 ± 0.14 | 3.39 ± 0.13∗ | 3.97 ± 0.23∗ |
In each row, values (mean ± SE) bearing asterisks differ significantly (P < 0.05) from that of values in untreated (T0) fish.